Buddy, one of the best chances I get to study is in the bathroom. I have 4 kids myself, and I am VP of a company here in Florida and work 10-12 hr days. Years ago I found that by keeping a codebook in the bathroom, I could get in a good 15 minutes in the morning, and 15 in the afternoon, whether I was actually "using" the bathroom or not. It was a good excuse to get away! Also, I hunt as much as I can. What better way to study than to sit in a deer stand countless hours each day and study a handbook. It actually helped me be a more successful hunter as I didn't spend so much time moving around for every little noise I heard. You have plenty of time in each day to study, just try to make the most of the time you have and everything will work out!
If it seems like it was too easy, double check, you probably screwed up!